Performance comparison of Flow Aware Networking (FAN) architectures under GridFTP traffic

  • Authors:
  • César Cárdenas;Maurice Gagnaire

  • Affiliations:
  • ENST Paris, Rue Barrault, Paris, France;ENST Paris, Rue Barrault, Paris, France

  • Venue:
  • Proceedings of the 2008 ACM symposium on Applied computing
  • Year:
  • 2008

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Abstract

Grid networks are large distributed systems that share and virtualize heterogeneous resources. Quality of Service (QoS) is a key and complex issue for Grid services provisioning. Currently, most Grid networks offer best-effort (BE) services. Thus, QoS architectures initially developed for Internet such as DiffServ (DS) have been adapted to Grid environment. Since the widespread of Internet, many Grid networks will be deployed in the years to come over this technology. In this paper, we propose to compare two Flow-Aware Networking (FAN) architectures, mainly from the second generation (2GFAN). The purpose is to answer the question of which 2GFAN architecture performs better under Grid traffic. FAN is a promising option to DS for QoS provisioning in Internet networks. DS provides QoS differentiation through explicit packet marking and classification whereas FAN consist on per-flow admission control and implicit flow differentiation through priority fair queuing. The main difference between the two 2GFAN architectures is the fair queuing algorithm. Thus; to the knowledge of the authors, this is the first time two priority per-flow fair queuing algorithms are compared under Grid traffic. A GridFTP session may be seen as a succession of parallel TCP flows with large volumes of data transfers. Metrics used are average delay, average goodput and the average rejection rate.